19887647

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{809}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 22498560

約数和(自身を除く): 2610913

約数列:

[1, 13, 31, 61, 403, 793, 809, 1891, 10517, 24583, 25079, 49349, 326027, 641537, 1529819, 19887647]

約数ペア:

[(1, 19887647), (13, 1529819), (31, 641537), (61, 326027), (403, 49349), (793, 25079), (809, 24583), (1891, 10517)]